Bobbin stripper



July 29, 1952 R. J. HAUG 2,604,686

BOBBIN STRIPPER Filed Oct. 28, 1949 5 Sheets-Shree?l l j I @MWI/13s Juy 29, 1952 R. J. HAUG 2,604,686

BOBBIN STRIPPER Filed oct. 26, 1949 5 sheets-sheet 2 July 29, 1952 R. J. HAUG BOBBIN STRIPPER 5 Sheets-Sheet 5 Filed Oct. 28, 1949 (Ill Ill. |||l @abbot/"ms July 29, 1952 R. J. HAUG 2,604,686

BOBBIN STRIPPER Filed 00L' 28. 1949 5 Sheets-Sheet 4 L. mlmf VUM" July 29, 1952 R. J. HAUG 2,604,686

BOBBIN STRIPPER Filed Oct. 28, 1949 5 51199155-5119@ 5 Patented July 29, 1952 UNITED, STATES raTaNT. or .ice a 2,604,686 v l.

BOBBIN STRTPPER A Richard J. Haug, Nashua, N. H. Application October 28, 1949, Serial No. 1224.,1'08

12 Claims. (Cl. 28-`20) i My invention relates tofmachines for removing unused yarn from bobbins and in particular to means for the stripping from bobbins such yarn as is diflicult to remove therefrom and is not removable by present machinery. l

The principal object-of the invention is to oscllate the bobbin .having `the unused yarn upon it and at the same time to cause the bobbin to move away from members which engage the yarn thereon.`

The principal featureof the invention consists in exerting a downward pull upon the unused yarn on the bobbin while it is Vbeing oscillated.

Other and more lspecific features fof the invention. residing in advantageous forms, combinations and relations of parts,`will hereinafter appear and be pointed out in the claims.

In the drawings, I

Figure 1 Vis a front" elevational' view of the machine, a portion of the housing thereof being broken away for 'clarity` Y Figure 2 is a side elevationalview of the machine. p

Figure 3 is a view partlyin section and partly in elevation of the lower portion of the machine.

Figure 4 is an enlargedtop plan view of the machine. I

Figure 5 is an enlarged sectional view taken on line 5 5 of Figure l. y

Figure 6 is an enlarged sectional view showing the means for operating the ripping rollers.

Figure '7 is a plan view of the cleaning jaws which may be used in place of the ripping rollers to remove unused yarn from the bobbin.

Figures 8, 9 and 10 are sectional views taken on lines 8-B, 9-9 and I0--I0, respectively, of Figure 3.

In the drawings, I represents the base of the machine from which three members 2, 3 and Il, respectively, extend upwardly and which at their upper ends may be connected by cross pieces or the like 5. Extending'upwardly between two of the upright members "is a shaft 6 for operating other movable parts of the machine to' be described. At its lower end,v it is provided with a pulley or the likeflv rfor receiving a belt or similar means through which power is delivered to shaft B. Just above the pulley I is a bevel gear 8 which meshes with a bevel gear 9 for operating a stub shaft l0.

On the operating shaft 6 and above the bevel gear 8 is a worm Il for operating a worm gear I2 for purposes hereinafter to be described. At its upper end, shaft 6 is formed with an eccentric or cam I3 which rotates Within a Collar or the Z i.. like lli. The collar I4 which surrounds the beccentric is formed. with a rigiq` 'linkxor the like i5 which maybe pinned, as at `Iito extensions' of a bushing I'I splined adjacent` the upper end of a shaft I 8'. By means of the eccentric VIS rotatingwithin the collar I which is connected to the splined shaft I8, it will be `perceivedtllat the splined shaft is continually oscillated. i The worm gear I2 is mounted .upon a transverse shaft I9 on which is rigidly. mounted a heart-shaped cam 20. In4 engagement withv the periphery of cam 2U is a roller 2| .m'ountC-:d:` on; the lower end of an upright member 22 which. at its upper end is connected to the splined shaft i8 by an arm 23. .The member"2l is vertically' slidable within a suitable groove which may be conveniently formed in one of the uprightmembers. A cover 24 may advantageously beformed over the member 2| so'as to maintain it in its groove. 'A r .I

The lower end of thesplined shaft` I8 is pro-` vided with a clutch mechanism having a pair of jaws 25 for grippingthe head of a'bobbin 26 .whichi contains the remains of unusedV yarn adjacent its head. `The inner faces of the jaws are preferably formed withva friction.lining to engage vertically slidable device 3l.

the wood of the bobbin and yetnot'press on the rings surrounding thehead of the top of the bob'- bin because pressing on the rings would intime loosen them. g i l VJaws 25 are pivotally mounted' at the lower end of the splined. sh'aft I8,' as indicated at 21. At their upper ends, the'jaws are bifurcatedA as at 28 and they are` provided `with rollersv 29 'for engagement with a transverse member 3d of a By arranging the transverse member 30 so asto engage the rollers 29, the jaws are forced apart into engagement with the head of an associatedlbobbiar Transverse member V3l) formed at the lower end of the vertically slidable device 3| has. an upwardly spaced portion 32 ,which when the splined shaft is elevated, moves downwardly into engagement with the rollers 23 of the jawsY and forces them outwardly as shown in dotted line in Figure 3. Extending upwardly; fromandpref erably formed integrally Awithwplate 32. isV a .rod 33 whose upper end. extends into' arboredfout portion 3d. Connected`v tothe. rod Vvmby'oneror more pins 35 is a vmember 36 which; when the splinedishaft is elevated, `is adapted 'to beV er1- gaged by the upper outerend 31 ofL a bell crank leveriiipivotedlat 39 to the machine.

The upper end of the bell cranl:` lever `isiforn'fi'edv with an elongated slot 40 for receiving-apih.

4I carried by a lever 42 which is actuated in timed relation with vertical movement of the splined shaft I8 to engage the member 36. The lower end of lever 42 is provided with a roller 43 for engagement with an arm 44 which is rigid with shaft I9. Any suitable means, such as a spring 45 which is anchored to upright member 4 of the machine may be conveniently employed to cause lever- 42 to rotate in a clockwise direction as viewed in Figure 3 of the drawings and thereby normally move bell crank 38 into the position shown.

It will be appreciated that the bell crank 38 moves into the position shown in Figure 3 when the roller 2| moves into the depression in cam 20 and that, when approximately in this position, arm 44 moves from contact with roller 43, thus permitting spring 45 to again cause lever 42 to move in a counter-clockwise direction and bell crank 38 to move inthe opposite direction, so f 29 of the jaws 25, thereby causing the `jaws to release the head of the bobbin which has been worked on and to be in position to engage the head of the next bobbin fed to the machine.

As the bobbin is moved upwardly all unused yarn remaining on it is quickly stripped therefrom by serrated or ripping rollers 41 which have concaved peripheries so that their diameter is somewhat larger than the body of the bobbin and will, therefore, not touch or scar it. The rollers 41 are preferably removably screwed in place, as shown in Figure 6 of the drawings, and receive their motion from stub shaft I having at its inner end a bevel gear 48 meshing with another bevel gear 49 which by being rigidly connected to a shaft 50 causes it to rotate. Rigid with shaft 50 is a gear 5I which meshes with a similar gear 52 to drive shaft 53 into which the associated serrated or ripping roller is screw threaded.

Instead of employing the serrated or ripping rollers 41, they may be quickly unscrewed from the shafts in which they are mounted and the cleaning of the bobbin may be accomplished by using a pair of relatively soft jaws 54. The jaws 54 are in the main of metal 55 beyond which relatively soft material 56 projects. One of the jaws 54 is provided with an arm 51 which overlaps and extends beyond the other jaw 54. Arm 51 and the other jaw are each provided with racks 58 between which a pinion 59 is mounted for operating them in timed relation with the movement of the splined shaft I8. As shown most clearly in Figures l and 3, the soft jaws are operated by a link 60. The link is bent intermediate its ends and at that point it is provided with a roller 6I for engagement with a cam 62 which is also mounted on the transverse shaft I9. At its upper end, link 60 is pivotally connected as at 63 to a bracket 64 and at its lower end it is pivotally connected to the outer end of arm 51. It will thus be seen that, as roller 6I of link 60 tracks -with the cam 62, movement of the jaws 54 into engagement with unused yarn on the bobbin will be accomplished because, as shown in Figure '7, as arm 51 moves to the right, it rotates pinion 59 which, being in engagement with the rack on the other jaw, causes it; to move in a direction opposite to the direction of movement ofthe other jaw to which link 60 is pivotally connected.

Whether the serrated or ripping rollers 41 or the soft jaws 54 are employed, it will be appreciated that, when these dierent members are in engagement with the unused yarn on the bobbin, the bobbin is oscillated as well as being moved upwardly and downwardly.

Although I have illustrated and described the preferred embodiment of my invention, it will be apparent that modifications may be made in the device without departing from the spirit and scope of the appended claims.

What I claim is:

l. A bobbin stripping machine having a vertically extending shaft provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, means for oscillating said shaft with the bobbin held in said jaws, means for causing said shaft to reciprocate vertically while oscillating, and means for engaging yarn on said bobbin to strip the yarn therefrom.

2. A bobbin stripping machine having a vertically extending shaft provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, means for causing said shaft to oscillate while the bobbin is held in said jaws, means for moving said shaft vertically, and means for engaging the yarn on the bobbin to strip the yarn therefrom.

3. A bobbin stripping machine having a vertically extending shaft provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, means for engaging the yarn on the held bobbin, a second vertically extending shaft having means for oscillating the shaft provided with 'jaws, and said second shaft rotating a cam for causing the shaft with the jaws to move upwardly while oscillating.

4. A bobbin stripping machine having a pair of upwardly extending shafts, one of said shafts being provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, the other of said shafts being provided with means for oscillating the shaft provided with jaws and being also provided with means for reciprocating said last mentioned shaft, and means operable by said second named shaft for engaging the yarn remaining on said bobbin.

5. A bobbin stripping machine having a plurality of upwardly extending substantially parallel shafts, one of said shafts being provided with jaws for'holding the head of a bobbin with unused yarn remaining thereon, the other of said shafts being an operating shaft for removing the yarn from the bobbin, said operating shaft being provided with eccentric means for causing the held bobbin to oscillate and being operative to rotate a cam for raisingand lowering the bobbin holding shaft while the bobbin is oscillating.

Y6. A bobbin stripping machine having a plurality of upwardly extending substantially parallel shafts, one of said shafts provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, the otherrof said shafts being an operating shaft, said operating shaft being provided at its upper end with means for causing the. other shaftto oscillate and also being provided with means for operating a cam to cause said other shaft to reciprocate vertically, and said operating shaft operating means to engage said yarn. 4 A. l

7. A bobbin stripping machine having a pair of upwardly extending shafts, one of said shafts being provided with jaws for holding the head of a bobbin with unused yarn remaining thereon, an operating vertically extending shaft having means to oscillate the shaft provided with jaws, said operating shaft also causing said first named shaft to reciprocate vertically, and means operable by said operating shaft engageable with the yarn remaining on the bobbin.

8. A bobbin stripping machine having a pair of substantially parallel upwardly extending shafts, one of said shafts being provided with jaws for engaging the head of a bobbin having unused yarn remaining thereon, the other of said shafts oscillating the shaft with the jaws and also having means for vertically reciprocating said oscillating shaft and for actuating means to engage said yarn.

9. A bobbin stripping machine having a vertically extending shaft rotatable about its axis and oscillating during its rotary movement, said shaft provided with jaws for holding the head of a bobbin, a clutch carried by said shaft and movable therewith for maintaining said jaws in engagement with the bobbin head, and means for moving said jaws out of engagement with said bobbin.

10. A bobbin stripping machine having a pair of upwardly extending shafts, one of said shafts being rotatable about its axis and oscillating during its rotary movement, said shaft provided with jaws for engaging the head of a bobbin having unused yarn remaining thereon, a clutch carried by said shaft and movable therewith for maintaining said jaws in engagement with the head of the bobbin, and means operable by the other one of said shafts for causing said clutch to disengage the jaws from the bobbin.

l1. A bobbin stripping machine having an upright shaft rotatable about its axis and oscillating during its rotary movement, said shaft provided with jaws for holding the head of a bobbin, means for moving the shaft vertically, and clutch means carried by said shaft and movable therewith for causing said jaws to free said bobbin when said shaft is moved in one direction.

12. A bobbin stripping machine having a pair of upwardly extending rotatable shafts, one of said shafts having a plurality of fingers for holding the head of a bobbin with unused yarn thereon, means for maintaining said lingers in operative positions, the other shaft actuating a cam for vertically moving the shaft with said jaws and also operating a cam to actuate said means `to cause said fingers to disengage said bobbin.

RICHARD J. HAUG.

REFERENCE S CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 906,688 Camp Dec. 15, 1908 1,260,867 Burnett Mar. 26, 1918 l1,273,075 Linder July 16, 1918. 1,447,272 Stone Mar. 6, 1923 1,740,127 Terrell Dec. 17, 1929 

